🛠️ Basic Concepts

This section introduces some of the foundational concepts of Node-RED.

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🔧 What Is a Node?

Each node in Node-RED represents a specific function or capability. Common examples include:

• Inject Node – to trigger a flow
• Debug Node – to display data
• Function Node – to run custom JavaScript logic

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🔁 What Is a Flow?

A flow is a group of connected nodes that work together to perform a task.

• Flows can span multiple tabs.
• Messages (with a msg object) pass between nodes.

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📦 What Is a Payload?

The msg.payload property contains the core data passed between nodes.

Example:

{
  "payload": "Hello, world!"
}

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This section will grow with more examples, best practices, and visuals. Stay tuned!